Section IV. OPERATION OF EQUIPMENT
a. The instructions in this section are pub-
lished for the information and guidance of the
personnel responsible for the operation of the
b. The operator must know how to perform
every operation of which the welding machine
is capable. This section gives instructions on
starting and stopping the welding machine,
and various settings of controls to enable the
welding machine to perform different types
of welding for which it is designed,. Since
nearly every job presents a different problem,
the operator may have to vary given proce-
dures to fit the individual job.
Caution: When using the machine for high
the machine is not properly grounded.
a. Preparation for Starting.
(1) Perform the daily preventive mainte-
(2) Clean area on item to be welded to in-
sure a good connection.
(3) Connect the ground clamp of the
load (work) cable to the work table
or item to be welded.
b. Remove the ground clamp from the item
2-13. Welding Machine Operation
electrode for inert gas welding.